Safety attachment for elevartors



Feb. 5, 1924. 1,482,523

E. RASEY SAFETY ATTACHMENT FOR ELEVATORS Filed March 23 1921 Ell ELIJAH BASEQ'E', 03 2GB ANGELES, GALIFORIHA.

ELEVATORS.

-application filed ItZarcn that l, ELIJAH Eas er, a

ates residing at Les lies i ingeles and of which following is a specification.

l 'tachinent for Elevators This n :ltion rela'es to elevators, being more particularly a safety device or attachn nt for elevator b means of wl'iich an elevartor so e ;uipped, is auton'latically stopped in the event the hoisting cable breaks or releases the car.

The invention resides in mechanism so "us or dogs mounted on the ac reel-1s at the side of the elesuch dogs being so arranged hat a cus i g effect is produced thereby ninsting jar to the car and passengers. Zhe principal object oi icy intention is to Z .taclnnent of the class described siirple ferns and construction.

*(lther objects and advantages will appear hereinaii ire-in the following description and draw ngs.

Rel to the drawings which are for illustrative purpose only.

Fig. 1 is a face View of an elevator, partly in. section, equipped with my safety attaches Fig. :5 is an inverted sectional plan view on line 2-2, Fig. 1.

Fig. 3 is a sectional view on line 33., Fig. l, and

Fig. l is a vertical sectional view on line l4:, Fig. 1.

ln the drawings, 11 indicates the racks on each side of the elevator shaft, such racks being mounted in the usual manner to the shaft timbers (not shown).

lhe 12 is suspended on the lilting cable 13 the operation of the car being con trolled by any suitable mechanism not shown as such mechanism forms no part of my invention.

1% indicates the floor oi the car supported on cross beams 15 to which are attached two standards 16 on each side of the car. EK- tending across the top of the ear is the cross head 17 consisting of two channel bars 19:, such bars be connected to the standards 16 any sui manner.

A dog or arm 20 is provided at each side 1321. Serial No. 45 2788.

the car arunged to engage the respective lacks 11 such dogs being slidably mounted in guides formed of plates bolted to the sides or the channel bars 18 and extending under such bars to form supporting guides for the dogs. Each dog is engaged on its upper face by a plate yieldingly mounted on bolts 2 which are supported on the lower flanges of the bars 18. Mounted on each bolt a compression spring which yieldingly holds the plate 23 against its associated dog.

Vertically slidable in ways 27 between the Jars 18 is a plunger 28 connected in any uitable manner to the cable 1 The lower lid of the plunger 28 is provided with a head 29 which. engages under the bars 18 and supports the weight of the car and load thereby. Each dog 20 is connected to the upper end of the plunger by means of a link 30 so arranged that during the normal operation oi the elevator the dogs are retracted or out of the path of racks at the side of the elevator shaft.

In the event the cable 13 should break or slip and .fail to support the car, the weight of the plunger 28 causes the plunger to drop and through the medium of the links 80 the dogs 20 are moved into the path of the racl: and engage the teeth thereon. 'lhis engagement of the rack by the dogs causes the elevator to stop as the elevator is then supported on the dogs 20. As the dogs on the teeth 01" the raclzs, the springs absorb the shock or as the weight of the car compresses the springs which yieldingly hold the plate 23 in engagement with the dogs 20.

Ben auxiliary safety attachment which may be operated by a passenger is mounted in the side of the car and consists of a pivoted arni mounted in a slot 36 in one of the standards 16, such arm being provided at its upper ends with a knob 237 which may be gra pod by the passenger. By pulling the knob downwardly, the arrn is swung outwardly into engagement with the rack 11, the lower end of the arm coming into engagement with the upper end of a slot 39 in the opposite standard 16. This engageinent of the arm with rack causes the car to stop, the weight of the car bein supported 2 1 ,asaaes 28 acts promptly to throw out the dogs 20, handle on said dog for swinging the same 1 the plunger may be provided with Weights across said rack into a slot in the other indicated at 40. standard and against the upper end of said I claim as my invention: slot for arresting the descent of said elevator.

In combination With an elevator shaft Intestirnony whereof, I have hereunto set including a vertical rack on the side thereof; my hand at Los Angeles, California, this 15 an elevator car including a pair of standards 18th day of March, 1921. between Which said rack extends; a Weighted dog pivoted in one of said standards; and a ELIJAH RASEY. 

